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Pré-Publication, Document De Travail Année : 2004

Deformation of grain boundaries in polar ice

Résumé

The ice microstructure (grain boundaries) is a key feature used to study ice evolution and to investigate past climatic changes. We studied a deep ice core, in Dome Concordia, Antarctica, which records past mechanical deformations. We measured a "texture tensor" which characterizes the pattern geometry and reveals local heterogeneities of deformation along the core. These results question key assumptions of the current models used for dating.
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Dates et versions

hal-00000573 , version 1 (03-09-2003)
hal-00000573 , version 2 (29-04-2004)
hal-00000573 , version 3 (22-07-2004)

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Gaël Durand, François Graner, Jérôme Weiss. Deformation of grain boundaries in polar ice. 2004. ⟨hal-00000573v3⟩
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